VELOCITY MAP IMAGING STUDIES OF THE LYMAN-ALPHA PHOTODISSOCIATION MECHANISM FOR H ATOM PRODUCTION FROM HYDROCARBONS

H atoms produced in Lyman ct photolysis of ethane, propane, and ethyle ne have been studied using velocity map imaging techniques. Two types of H atoms are identified, one formed along with an alkyl radical in t he Rydberg state and the other by the subsequent decomposition of this Rydberg radical. (C) 1998 American Institute of Physics.